ShowWindow

This function sets the specified window’s show state.

At a Glance

Header file:	Winuser.h
Windows CE versions:	1.0 and later

Syntax

BOOL ShowWindow( HWND hWnd, int nCmdShow);

Parameters

hWnd

Handle to the window.

nCmdShow

Specifies how the window is to be shown. The first time ShowWindow is called, the value should be the value obtained by the WinMain function in its nCmdShow parameter. In subsequent calls, this parameter can be one of the following values:

Value	Description
SW_FORCEMINIMIZE	Windows NT 5.0 and later: Minimizes a window, even if the thread that owns the window is hung. This flag should only be used when minimizing windows from a different thread.
SW_HIDE	Hides the window and activates another window.
SW_SHOW	Activates the window and displays it in its current size and position.
SW_SHOWNA	Displays the window in its current state. The active window remains active.
SW_SHOWNORMAL	Activates and displays a window. If the window is minimized or maximized, the system restores it to its original size and position. An application should specify this flag when displaying the window for the first time.

Return Values

Nonzero indicates that the window was previously visible. Zero indicates that the window was previously hidden.

Remarks

The first time an application calls ShowWindow, it should use the WinMain function’s nCmdShow parameter as its nCmdShow parameter. Subsequent calls to ShowWindow must use one of the values in the given list, instead of the one specified by the WinMain function’s nCmdShow parameter.